django.git, branch 2.1.8

[2.1.x] Bumped version for 2.1.8 release.

2019-04-01T09:08:23Z

[2.1.x] Fixed #30289 -- Prevented admin inlines for a ManyToManyField's implicit through model from being editable if the user only has the view permission.

2019-03-30T21:56:50Z

Backport of 8335d59200e4c64dfe3348ea93989d95e0107439 from master.

[2.1.x] Added stub 2.1.8 release notes.

2019-03-30T17:04:45Z

Backport of e245046bb6e8b32360aa48b8a41fb7050f0fc730 from master

[2.1.x] Fixed #30277 -- Fixed broken links to packaging.python.org.

2019-03-21T14:08:29Z

Backport of 8f1cc7e9e61758475ddd6586e0fede4af1ca0e8d from master.

[2.1.x] Fixed serializers test crash if PyYAML isn't installed.

2019-03-20T15:09:01Z

Follow up to a57c783dd4e6dc73847081221827a1902eede88b. Backport of 55490ac7469a3647ce163bee323f7fe4a06fcaa6 from master

[2.1.x] Fixed serializers tests for PyYAML 5.1+.

2019-03-14T17:39:06Z

Backport of a57c783dd4e6dc73847081221827a1902eede88b from master

[2.1.x] Reverted "Fixed relative paths imports per isort 4.3.5."

2019-03-03T18:37:25Z

This reverts commit 463fe11bc8b2d068e447c5df677e7a31c2af7e03 due to restore of relative paths sorting from isort < 4.3.5 in isort 4.3.10. Backport of b435f82939edf70674856e0e1cd63973c2e0a1d1 from master

[2.1.x] Clarified permission-related docs.

2019-02-28T14:29:32Z

Backport of 632d4861ddb99a2c9d11642fcfa4ad542b427d6b from master

[2.1.x] Refs #29683 -- Updated multi-db docs for view permission.

2019-02-25T19:57:27Z

Backport of 50f09264ae8ab04824fcc6554e8c184378ad2f81 from master

[2.1.x] Fixed documentation of database representation for ManyToManyField.

2019-02-25T19:10:22Z

Backport of b0799f5d86b6c0ccb1dcba6e0d2eee336f7f5928 from master